I rebooted the web server at 11:15AM because PHP applications were responding slowly and I was unable to find any heavy load to justify the cause. Since the machine needed to be rebooted to load a new kernel anyway I booted it. After the boot it responded normally. Downtime was approximately two minutes.

I have to apply kernel updates, take the machines down, and image them, and reboot all of the servers. I will be doing this early Saturday morning and if I am unable to complete all of them in time I will extend this to the same period Sunday morning.

With any of the above Desktops there is the option to Shutdown, Reboot, Hibernate, or Suspend available to the normal non-administrative user. The polkit-1 settings don’t seem to work. If anyone knows of a fix, I’d really like to make these new servers running Centos 7, Scientific Linux 7, Ubuntu, and Mint available.